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Finding the Fourth Proportional to 200,658.04, 276,913.36 and 113,436.20

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Solution

The fourth proportional to 200,658.04, 276,913.36 and 113,436.20 is: 156,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,658.04 : 276,913.36 = 113,436.20 : x
  2. Step 2: Convert to fraction form
    200,658.04/276,913.36 = 113,436.20/x
  3. Step 3: Cross multiply
    200,658.04x = 276,913.36 × 113,436.20
  4. Step 4: Simplify right side
    200,658.04x = 31,411,999,287.63
  5. Step 5: Solve for x
    x = 31,411,999,287.63/200,658.04
  6. Step 6: Final answer
    x = 156,544.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.